spca508.c

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/*
 * SPCA508 chip based cameras subdriver
 *
 * Copyright (C) 2009 Jean-Francois Moine <http://moinejf.free.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#define MODULE_NAME "spca508"

#include "gspca.h"

MODULE_AUTHOR("Michel Xhaard <[email protected]>");
MODULE_DESCRIPTION("GSPCA/SPCA508 USB Camera Driver");
MODULE_LICENSE("GPL");

/* specific webcam descriptor */
struct sd {
    struct gspca_dev gspca_dev;     /* !! must be the first item */

    u8 subtype;
#define CreativeVista 0
#define HamaUSBSightcam 1
#define HamaUSBSightcam2 2
#define IntelEasyPCCamera 3
#define MicroInnovationIC200 4
#define ViewQuestVQ110 5
};

static const struct v4l2_pix_format sif_mode[] = {
    {160, 120, V4L2_PIX_FMT_SPCA508, V4L2_FIELD_NONE,
        .bytesperline = 160,
        .sizeimage = 160 * 120 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 3},
    {176, 144, V4L2_PIX_FMT_SPCA508, V4L2_FIELD_NONE,
        .bytesperline = 176,
        .sizeimage = 176 * 144 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 2},
    {320, 240, V4L2_PIX_FMT_SPCA508, V4L2_FIELD_NONE,
        .bytesperline = 320,
        .sizeimage = 320 * 240 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 1},
    {352, 288, V4L2_PIX_FMT_SPCA508, V4L2_FIELD_NONE,
        .bytesperline = 352,
        .sizeimage = 352 * 288 * 3 / 2,
        .colorspace = V4L2_COLORSPACE_SRGB,
        .priv = 0},
};

/* Frame packet header offsets for the spca508 */
#define SPCA508_OFFSET_DATA 37

/*
 * Initialization data: this is the first set-up data written to the
 * device (before the open data).
 */
static const u16 spca508_init_data[][2] = {
    {0x0000, 0x870b},

    {0x0020, 0x8112},   /* Video drop enable, ISO streaming disable */
    {0x0003, 0x8111},   /* Reset compression & memory */
    {0x0000, 0x8110},   /* Disable all outputs */
    /* READ {0x0000, 0x8114} -> 0000: 00  */
    {0x0000, 0x8114},   /* SW GPIO data */
    {0x0008, 0x8110},   /* Enable charge pump output */
    {0x0002, 0x8116},   /* 200 kHz pump clock */
    /* UNKNOWN DIRECTION (URB_FUNCTION_SELECT_INTERFACE:) */
    {0x0003, 0x8111},   /* Reset compression & memory */
    {0x0000, 0x8111},   /* Normal mode (not reset) */
    {0x0098, 0x8110},
        /* Enable charge pump output, sync.serial,external 2x clock */
    {0x000d, 0x8114},   /* SW GPIO data */
    {0x0002, 0x8116},   /* 200 kHz pump clock */
    {0x0020, 0x8112},   /* Video drop enable, ISO streaming disable */
/* --------------------------------------- */
    {0x000f, 0x8402},   /* memory bank */
    {0x0000, 0x8403},   /* ... address */
/* --------------------------------------- */
/* 0x88__ is Synchronous Serial Interface. */
/* TBD: This table could be expressed more compactly */
/* using spca508_write_i2c_vector(). */
/* TBD: Should see if the values in spca50x_i2c_data */
/* would work with the VQ110 instead of the values */
/* below. */
    {0x00c0, 0x8804},   /* SSI slave addr */
    {0x0008, 0x8802},   /* 375 Khz SSI clock */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},   /* 375 Khz SSI clock */
    {0x0012, 0x8801},   /* SSI reg addr */
    {0x0080, 0x8800},   /* SSI data to write */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},   /* 375 Khz SSI clock */
    {0x0012, 0x8801},   /* SSI reg addr */
    {0x0000, 0x8800},   /* SSI data to write */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},   /* 375 Khz SSI clock */
    {0x0011, 0x8801},   /* SSI reg addr */
    {0x0040, 0x8800},   /* SSI data to write */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0013, 0x8801},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0014, 0x8801},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0015, 0x8801},
    {0x0001, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0016, 0x8801},
    {0x0003, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0017, 0x8801},
    {0x0036, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0018, 0x8801},
    {0x00ec, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x001a, 0x8801},
    {0x0094, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x001b, 0x8801},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0027, 0x8801},
    {0x00a2, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0028, 0x8801},
    {0x0040, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x002a, 0x8801},
    {0x0084, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00 */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x002b, 0x8801},
    {0x00a8, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x002c, 0x8801},
    {0x00fe, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x002d, 0x8801},
    {0x0003, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0038, 0x8801},
    {0x0083, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0033, 0x8801},
    {0x0081, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0034, 0x8801},
    {0x004a, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0039, 0x8801},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0010, 0x8801},
    {0x00a8, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0006, 0x8801},
    {0x0058, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00 */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0000, 0x8801},
    {0x0004, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0040, 0x8801},
    {0x0080, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0041, 0x8801},
    {0x000c, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0042, 0x8801},
    {0x000c, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0043, 0x8801},
    {0x0028, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0044, 0x8801},
    {0x0080, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0045, 0x8801},
    {0x0020, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0046, 0x8801},
    {0x0020, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0047, 0x8801},
    {0x0080, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0048, 0x8801},
    {0x004c, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x0049, 0x8801},
    {0x0084, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x004a, 0x8801},
    {0x0084, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x0008, 0x8802},
    {0x004b, 0x8801},
    {0x0084, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* --------------------------------------- */
    {0x0012, 0x8700},   /* Clock speed 48Mhz/(2+2)/2= 6 Mhz */
    {0x0000, 0x8701},   /* CKx1 clock delay adj */
    {0x0000, 0x8701},   /* CKx1 clock delay adj */
    {0x0001, 0x870c},   /* CKOx2 output */
    /* --------------------------------------- */
    {0x0080, 0x8600},   /* Line memory read counter (L) */
    {0x0001, 0x8606},   /* reserved */
    {0x0064, 0x8607},   /* Line memory read counter (H) 0x6480=25,728 */
    {0x002a, 0x8601},   /* CDSP sharp interpolation mode,
     *          line sel for color sep, edge enhance enab */
    {0x0000, 0x8602},   /* optical black level for user settng = 0 */
    {0x0080, 0x8600},   /* Line memory read counter (L) */
    {0x000a, 0x8603},   /* optical black level calc mode:
                 * auto; optical black offset = 10 */
    {0x00df, 0x865b},   /* Horiz offset for valid pixels (L)=0xdf */
    {0x0012, 0x865c},   /* Vert offset for valid lines (L)=0x12 */

/* The following two lines seem to be the "wrong" resolution. */
/* But perhaps these indicate the actual size of the sensor */
/* rather than the size of the current video mode. */
    {0x0058, 0x865d},   /* Horiz valid pixels (*4) (L) = 352 */
    {0x0048, 0x865e},   /* Vert valid lines (*4) (L) = 288 */

    {0x0015, 0x8608},   /* A11 Coef ... */
    {0x0030, 0x8609},
    {0x00fb, 0x860a},
    {0x003e, 0x860b},
    {0x00ce, 0x860c},
    {0x00f4, 0x860d},
    {0x00eb, 0x860e},
    {0x00dc, 0x860f},
    {0x0039, 0x8610},
    {0x0001, 0x8611},   /* R offset for white balance ... */
    {0x0000, 0x8612},
    {0x0001, 0x8613},
    {0x0000, 0x8614},
    {0x005b, 0x8651},   /* R gain for white balance ... */
    {0x0040, 0x8652},
    {0x0060, 0x8653},
    {0x0040, 0x8654},
    {0x0000, 0x8655},
    {0x0001, 0x863f},   /* Fixed gamma correction enable, USB control,
                 * lum filter disable, lum noise clip disable */
    {0x00a1, 0x8656},   /* Window1 size 256x256, Windows2 size 64x64,
                 * gamma look-up disable,
                 * new edge enhancement enable */
    {0x0018, 0x8657},   /* Edge gain high thresh */
    {0x0020, 0x8658},   /* Edge gain low thresh */
    {0x000a, 0x8659},   /* Edge bandwidth high threshold */
    {0x0005, 0x865a},   /* Edge bandwidth low threshold */
    /* -------------------------------- */
    {0x0030, 0x8112},   /* Video drop enable, ISO streaming enable */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0xa908, 0x8802},
    {0x0034, 0x8801},   /* SSI reg addr */
    {0x00ca, 0x8800},
    /* SSI data to write */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0x1f08, 0x8802},
    {0x0006, 0x8801},
    {0x0080, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

/* ----- Read back coefs we wrote earlier. */
    /* READ { 0x0000, 0x8608 } -> 0000: 15  */
    /* READ { 0x0000, 0x8609 } -> 0000: 30  */
    /* READ { 0x0000, 0x860a } -> 0000: fb  */
    /* READ { 0x0000, 0x860b } -> 0000: 3e  */
    /* READ { 0x0000, 0x860c } -> 0000: ce  */
    /* READ { 0x0000, 0x860d } -> 0000: f4  */
    /* READ { 0x0000, 0x860e } -> 0000: eb  */
    /* READ { 0x0000, 0x860f } -> 0000: dc  */
    /* READ { 0x0000, 0x8610 } -> 0000: 39  */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 08  */
    {0xb008, 0x8802},
    {0x0006, 0x8801},
    {0x007d, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */


    /* This chunk is seemingly redundant with */
    /* earlier commands (A11 Coef...), but if I disable it, */
    /* the image appears too dark.  Maybe there was some kind of */
    /* reset since the earlier commands, so this is necessary again. */
    {0x0015, 0x8608},
    {0x0030, 0x8609},
    {0xfffb, 0x860a},
    {0x003e, 0x860b},
    {0xffce, 0x860c},
    {0xfff4, 0x860d},
    {0xffeb, 0x860e},
    {0xffdc, 0x860f},
    {0x0039, 0x8610},
    {0x0018, 0x8657},

    {0x0000, 0x8508},   /* Disable compression. */
    /* Previous line was:
    {0x0021, 0x8508},    * Enable compression. */
    {0x0032, 0x850b},   /* compression stuff */
    {0x0003, 0x8509},   /* compression stuff */
    {0x0011, 0x850a},   /* compression stuff */
    {0x0021, 0x850d},   /* compression stuff */
    {0x0010, 0x850c},   /* compression stuff */
    {0x0003, 0x8500},   /* *** Video mode: 160x120 */
    {0x0001, 0x8501},   /* Hardware-dominated snap control */
    {0x0061, 0x8656},   /* Window1 size 128x128, Windows2 size 128x128,
                 * gamma look-up disable,
                 * new edge enhancement enable */
    {0x0018, 0x8617},   /* Window1 start X (*2) */
    {0x0008, 0x8618},   /* Window1 start Y (*2) */
    {0x0061, 0x8656},   /* Window1 size 128x128, Windows2 size 128x128,
                 * gamma look-up disable,
                 * new edge enhancement enable */
    {0x0058, 0x8619},   /* Window2 start X (*2) */
    {0x0008, 0x861a},   /* Window2 start Y (*2) */
    {0x00ff, 0x8615},   /* High lum thresh for white balance */
    {0x0000, 0x8616},   /* Low lum thresh for white balance */
    {0x0012, 0x8700},   /* Clock speed 48Mhz/(2+2)/2= 6 Mhz */
    {0x0012, 0x8700},   /* Clock speed 48Mhz/(2+2)/2= 6 Mhz */
    /* READ { 0x0000, 0x8656 } -> 0000: 61  */
    {0x0028, 0x8802},    /* 375 Khz SSI clock, SSI r/w sync with VSYNC */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 28  */
    {0x1f28, 0x8802},    /* 375 Khz SSI clock, SSI r/w sync with VSYNC */
    {0x0010, 0x8801},   /* SSI reg addr */
    {0x003e, 0x8800},   /* SSI data to write */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    {0x0028, 0x8802},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 28  */
    {0x1f28, 0x8802},
    {0x0000, 0x8801},
    {0x001f, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    {0x0001, 0x8602},    /* optical black level for user settning = 1 */

    /* Original: */
    {0x0023, 0x8700},   /* Clock speed 48Mhz/(3+2)/4= 2.4 Mhz */
    {0x000f, 0x8602},    /* optical black level for user settning = 15 */

    {0x0028, 0x8802},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 28  */
    {0x1f28, 0x8802},
    {0x0010, 0x8801},
    {0x007b, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    {0x002f, 0x8651},   /* R gain for white balance ... */
    {0x0080, 0x8653},
    /* READ { 0x0000, 0x8655 } -> 0000: 00  */
    {0x0000, 0x8655},

    {0x0030, 0x8112},   /* Video drop enable, ISO streaming enable */
    {0x0020, 0x8112},   /* Video drop enable, ISO streaming disable */
    /* UNKNOWN DIRECTION (URB_FUNCTION_SELECT_INTERFACE: (ALT=0) ) */
    {}
};

/*
 * Initialization data for Intel EasyPC Camera CS110
 */
static const u16 spca508cs110_init_data[][2] = {
    {0x0000, 0x870b},   /* Reset CTL3 */
    {0x0003, 0x8111},   /* Soft Reset compression, memory, TG & CDSP */
    {0x0000, 0x8111},   /* Normal operation on reset */
    {0x0090, 0x8110},
         /* External Clock 2x & Synchronous Serial Interface Output */
    {0x0020, 0x8112},   /* Video Drop packet enable */
    {0x0000, 0x8114},   /* Software GPIO output data */
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0003, 0x8114},

    /* Initial sequence Synchronous Serial Interface */
    {0x000f, 0x8402},   /* Memory bank Address */
    {0x0000, 0x8403},   /* Memory bank Address */
    {0x00ba, 0x8804},   /* SSI Slave address */
    {0x0010, 0x8802},   /* 93.75kHz SSI Clock Two DataByte */
    {0x0010, 0x8802},   /* 93.75kHz SSI Clock two DataByte */

    {0x0001, 0x8801},
    {0x000a, 0x8805},   /* a - NWG: Dunno what this is about */
    {0x0000, 0x8800},
    {0x0010, 0x8802},

    {0x0002, 0x8801},
    {0x0000, 0x8805},
    {0x0000, 0x8800},
    {0x0010, 0x8802},

    {0x0003, 0x8801},
    {0x0027, 0x8805},
    {0x0001, 0x8800},
    {0x0010, 0x8802},

    {0x0004, 0x8801},
    {0x0065, 0x8805},
    {0x0001, 0x8800},
    {0x0010, 0x8802},

    {0x0005, 0x8801},
    {0x0003, 0x8805},
    {0x0000, 0x8800},
    {0x0010, 0x8802},

    {0x0006, 0x8801},
    {0x001c, 0x8805},
    {0x0000, 0x8800},
    {0x0010, 0x8802},

    {0x0007, 0x8801},
    {0x002a, 0x8805},
    {0x0000, 0x8800},
    {0x0010, 0x8802},

    {0x0002, 0x8704},   /* External input CKIx1 */
    {0x0001, 0x8606},    /* 1 Line memory Read Counter (H) Result: (d)410 */
    {0x009a, 0x8600},   /* Line memory Read Counter (L) */
    {0x0001, 0x865b},   /* 1 Horizontal Offset for Valid Pixel(L) */
    {0x0003, 0x865c},   /* 3 Vertical Offset for Valid Lines(L) */
    {0x0058, 0x865d},   /* 58 Horizontal Valid Pixel Window(L) */

    {0x0006, 0x8660},   /* Nibble data + input order */

    {0x000a, 0x8602},   /* Optical black level set to 0x0a */
    {0x0000, 0x8603},   /* Optical black level Offset */

/*  {0x0000, 0x8611},    * 0 R  Offset for white Balance */
/*  {0x0000, 0x8612},    * 1 Gr Offset for white Balance */
/*  {0x0000, 0x8613},    * 1f B  Offset for white Balance */
/*  {0x0000, 0x8614},    * f0 Gb Offset for white Balance */

    {0x0040, 0x8651},   /* 2b BLUE gain for white balance  good at all 60 */
    {0x0030, 0x8652},   /* 41 Gr Gain for white Balance (L) */
    {0x0035, 0x8653},   /* 26 RED gain for white balance */
    {0x0035, 0x8654},   /* 40Gb Gain for white Balance (L) */
    {0x0041, 0x863f},
          /* Fixed Gamma correction enabled (makes colours look better) */

    {0x0000, 0x8655},
        /* High bits for white balance*****brightness control*** */
    {}
};

static const u16 spca508_sightcam_init_data[][2] = {
/* This line seems to setup the frame/canvas */
    {0x000f, 0x8402},

/* These 6 lines are needed to startup the webcam */
    {0x0090, 0x8110},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0003, 0x8114},
    {0x0080, 0x8804},

/* This part seems to make the pictures darker? (autobrightness?) */
    {0x0001, 0x8801},
    {0x0004, 0x8800},
    {0x0003, 0x8801},
    {0x00e0, 0x8800},
    {0x0004, 0x8801},
    {0x00b4, 0x8800},
    {0x0005, 0x8801},
    {0x0000, 0x8800},

    {0x0006, 0x8801},
    {0x00e0, 0x8800},
    {0x0007, 0x8801},
    {0x000c, 0x8800},

/* This section is just needed, it probably
 * does something like the previous section,
 * but the cam won't start if it's not included.
 */
    {0x0014, 0x8801},
    {0x0008, 0x8800},
    {0x0015, 0x8801},
    {0x0067, 0x8800},
    {0x0016, 0x8801},
    {0x0000, 0x8800},
    {0x0017, 0x8801},
    {0x0020, 0x8800},
    {0x0018, 0x8801},
    {0x0044, 0x8800},

/* Makes the picture darker - and the
 * cam won't start if not included
 */
    {0x001e, 0x8801},
    {0x00ea, 0x8800},
    {0x001f, 0x8801},
    {0x0001, 0x8800},
    {0x0003, 0x8801},
    {0x00e0, 0x8800},

/* seems to place the colors ontop of each other #1 */
    {0x0006, 0x8704},
    {0x0001, 0x870c},
    {0x0016, 0x8600},
    {0x0002, 0x8606},

/* if not included the pictures becomes _very_ dark */
    {0x0064, 0x8607},
    {0x003a, 0x8601},
    {0x0000, 0x8602},

/* seems to place the colors ontop of each other #2 */
    {0x0016, 0x8600},
    {0x0018, 0x8617},
    {0x0008, 0x8618},
    {0x00a1, 0x8656},

/* webcam won't start if not included */
    {0x0007, 0x865b},
    {0x0001, 0x865c},
    {0x0058, 0x865d},
    {0x0048, 0x865e},

/* adjusts the colors */
    {0x0049, 0x8651},
    {0x0040, 0x8652},
    {0x004c, 0x8653},
    {0x0040, 0x8654},
    {}
};

static const u16 spca508_sightcam2_init_data[][2] = {
    {0x0020, 0x8112},

    {0x000f, 0x8402},
    {0x0000, 0x8403},

    {0x0008, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x0009, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x000a, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x000b, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x000c, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x000d, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x000e, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x0007, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x000f, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},

    {0x0018, 0x8660},
    {0x0010, 0x8201},

    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x0011, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},

    {0x0000, 0x86b0},
    {0x0034, 0x86b1},
    {0x0000, 0x86b2},
    {0x0049, 0x86b3},
    {0x0000, 0x86b4},
    {0x0000, 0x86b4},

    {0x0012, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},
    {0x0013, 0x8201},
    {0x0008, 0x8200},
    {0x0001, 0x8200},

    {0x0001, 0x86b0},
    {0x00aa, 0x86b1},
    {0x0000, 0x86b2},
    {0x00e4, 0x86b3},
    {0x0000, 0x86b4},
    {0x0000, 0x86b4},

    {0x0018, 0x8660},

    {0x0090, 0x8110},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0003, 0x8114},

    {0x0080, 0x8804},
    {0x0003, 0x8801},
    {0x0012, 0x8800},
    {0x0004, 0x8801},
    {0x0005, 0x8800},
    {0x0005, 0x8801},
    {0x0000, 0x8800},
    {0x0006, 0x8801},
    {0x0000, 0x8800},
    {0x0007, 0x8801},
    {0x0000, 0x8800},
    {0x0008, 0x8801},
    {0x0005, 0x8800},
    {0x000a, 0x8700},
    {0x000e, 0x8801},
    {0x0004, 0x8800},
    {0x0005, 0x8801},
    {0x0047, 0x8800},
    {0x0006, 0x8801},
    {0x0000, 0x8800},
    {0x0007, 0x8801},
    {0x00c0, 0x8800},
    {0x0008, 0x8801},
    {0x0003, 0x8800},
    {0x0013, 0x8801},
    {0x0001, 0x8800},
    {0x0009, 0x8801},
    {0x0000, 0x8800},
    {0x000a, 0x8801},
    {0x0000, 0x8800},
    {0x000b, 0x8801},
    {0x0000, 0x8800},
    {0x000c, 0x8801},
    {0x0000, 0x8800},
    {0x000e, 0x8801},
    {0x0004, 0x8800},
    {0x000f, 0x8801},
    {0x0000, 0x8800},
    {0x0010, 0x8801},
    {0x0006, 0x8800},
    {0x0011, 0x8801},
    {0x0006, 0x8800},
    {0x0012, 0x8801},
    {0x0000, 0x8800},
    {0x0013, 0x8801},
    {0x0001, 0x8800},

    {0x000a, 0x8700},
    {0x0000, 0x8702},
    {0x0000, 0x8703},
    {0x00c2, 0x8704},
    {0x0001, 0x870c},

    {0x0044, 0x8600},
    {0x0002, 0x8606},
    {0x0064, 0x8607},
    {0x003a, 0x8601},
    {0x0008, 0x8602},
    {0x0044, 0x8600},
    {0x0018, 0x8617},
    {0x0008, 0x8618},
    {0x00a1, 0x8656},
    {0x0004, 0x865b},
    {0x0002, 0x865c},
    {0x0058, 0x865d},
    {0x0048, 0x865e},
    {0x0012, 0x8608},
    {0x002c, 0x8609},
    {0x0002, 0x860a},
    {0x002c, 0x860b},
    {0x00db, 0x860c},
    {0x00f9, 0x860d},
    {0x00f1, 0x860e},
    {0x00e3, 0x860f},
    {0x002c, 0x8610},
    {0x006c, 0x8651},
    {0x0041, 0x8652},
    {0x0059, 0x8653},
    {0x0040, 0x8654},
    {0x00fa, 0x8611},
    {0x00ff, 0x8612},
    {0x00f8, 0x8613},
    {0x0000, 0x8614},
    {0x0001, 0x863f},
    {0x0000, 0x8640},
    {0x0026, 0x8641},
    {0x0045, 0x8642},
    {0x0060, 0x8643},
    {0x0075, 0x8644},
    {0x0088, 0x8645},
    {0x009b, 0x8646},
    {0x00b0, 0x8647},
    {0x00c5, 0x8648},
    {0x00d2, 0x8649},
    {0x00dc, 0x864a},
    {0x00e5, 0x864b},
    {0x00eb, 0x864c},
    {0x00f0, 0x864d},
    {0x00f6, 0x864e},
    {0x00fa, 0x864f},
    {0x00ff, 0x8650},
    {0x0060, 0x8657},
    {0x0010, 0x8658},
    {0x0018, 0x8659},
    {0x0005, 0x865a},
    {0x0018, 0x8660},
    {0x0003, 0x8509},
    {0x0011, 0x850a},
    {0x0032, 0x850b},
    {0x0010, 0x850c},
    {0x0021, 0x850d},
    {0x0001, 0x8500},
    {0x0000, 0x8508},
    {0x0012, 0x8608},
    {0x002c, 0x8609},
    {0x0002, 0x860a},
    {0x0039, 0x860b},
    {0x00d0, 0x860c},
    {0x00f7, 0x860d},
    {0x00ed, 0x860e},
    {0x00db, 0x860f},
    {0x0039, 0x8610},
    {0x0012, 0x8657},
    {0x000c, 0x8619},
    {0x0004, 0x861a},
    {0x00a1, 0x8656},
    {0x00c8, 0x8615},
    {0x0032, 0x8616},

    {0x0030, 0x8112},
    {0x0020, 0x8112},
    {0x0020, 0x8112},
    {0x000f, 0x8402},
    {0x0000, 0x8403},

    {0x0090, 0x8110},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0003, 0x8114},
    {0x0080, 0x8804},

    {0x0003, 0x8801},
    {0x0012, 0x8800},
    {0x0004, 0x8801},
    {0x0005, 0x8800},
    {0x0005, 0x8801},
    {0x0047, 0x8800},
    {0x0006, 0x8801},
    {0x0000, 0x8800},
    {0x0007, 0x8801},
    {0x00c0, 0x8800},
    {0x0008, 0x8801},
    {0x0003, 0x8800},
    {0x000a, 0x8700},
    {0x000e, 0x8801},
    {0x0004, 0x8800},
    {0x0005, 0x8801},
    {0x0047, 0x8800},
    {0x0006, 0x8801},
    {0x0000, 0x8800},
    {0x0007, 0x8801},
    {0x00c0, 0x8800},
    {0x0008, 0x8801},
    {0x0003, 0x8800},
    {0x0013, 0x8801},
    {0x0001, 0x8800},
    {0x0009, 0x8801},
    {0x0000, 0x8800},
    {0x000a, 0x8801},
    {0x0000, 0x8800},
    {0x000b, 0x8801},
    {0x0000, 0x8800},
    {0x000c, 0x8801},
    {0x0000, 0x8800},
    {0x000e, 0x8801},
    {0x0004, 0x8800},
    {0x000f, 0x8801},
    {0x0000, 0x8800},
    {0x0010, 0x8801},
    {0x0006, 0x8800},
    {0x0011, 0x8801},
    {0x0006, 0x8800},
    {0x0012, 0x8801},
    {0x0000, 0x8800},
    {0x0013, 0x8801},
    {0x0001, 0x8800},
    {0x000a, 0x8700},
    {0x0000, 0x8702},
    {0x0000, 0x8703},
    {0x00c2, 0x8704},
    {0x0001, 0x870c},
    {0x0044, 0x8600},
    {0x0002, 0x8606},
    {0x0064, 0x8607},
    {0x003a, 0x8601},
    {0x0008, 0x8602},
    {0x0044, 0x8600},
    {0x0018, 0x8617},
    {0x0008, 0x8618},
    {0x00a1, 0x8656},
    {0x0004, 0x865b},
    {0x0002, 0x865c},
    {0x0058, 0x865d},
    {0x0048, 0x865e},
    {0x0012, 0x8608},
    {0x002c, 0x8609},
    {0x0002, 0x860a},
    {0x002c, 0x860b},
    {0x00db, 0x860c},
    {0x00f9, 0x860d},
    {0x00f1, 0x860e},
    {0x00e3, 0x860f},
    {0x002c, 0x8610},
    {0x006c, 0x8651},
    {0x0041, 0x8652},
    {0x0059, 0x8653},
    {0x0040, 0x8654},
    {0x00fa, 0x8611},
    {0x00ff, 0x8612},
    {0x00f8, 0x8613},
    {0x0000, 0x8614},
    {0x0001, 0x863f},
    {0x0000, 0x8640},
    {0x0026, 0x8641},
    {0x0045, 0x8642},
    {0x0060, 0x8643},
    {0x0075, 0x8644},
    {0x0088, 0x8645},
    {0x009b, 0x8646},
    {0x00b0, 0x8647},
    {0x00c5, 0x8648},
    {0x00d2, 0x8649},
    {0x00dc, 0x864a},
    {0x00e5, 0x864b},
    {0x00eb, 0x864c},
    {0x00f0, 0x864d},
    {0x00f6, 0x864e},
    {0x00fa, 0x864f},
    {0x00ff, 0x8650},
    {0x0060, 0x8657},
    {0x0010, 0x8658},
    {0x0018, 0x8659},
    {0x0005, 0x865a},
    {0x0018, 0x8660},
    {0x0003, 0x8509},
    {0x0011, 0x850a},
    {0x0032, 0x850b},
    {0x0010, 0x850c},
    {0x0021, 0x850d},
    {0x0001, 0x8500},
    {0x0000, 0x8508},

    {0x0012, 0x8608},
    {0x002c, 0x8609},
    {0x0002, 0x860a},
    {0x0039, 0x860b},
    {0x00d0, 0x860c},
    {0x00f7, 0x860d},
    {0x00ed, 0x860e},
    {0x00db, 0x860f},
    {0x0039, 0x8610},
    {0x0012, 0x8657},
    {0x0064, 0x8619},

/* This line starts it all, it is not needed here */
/* since it has been build into the driver */
/* jfm: don't start now */
/*  {0x0030, 0x8112}, */
    {}
};

/*
 * Initialization data for Creative Webcam Vista
 */
static const u16 spca508_vista_init_data[][2] = {
    {0x0008, 0x8200},   /* Clear register */
    {0x0000, 0x870b},   /* Reset CTL3 */
    {0x0020, 0x8112},   /* Video Drop packet enable */
    {0x0003, 0x8111},   /* Soft Reset compression, memory, TG & CDSP */
    {0x0000, 0x8110},   /* Disable everything */
    {0x0000, 0x8114},   /* Software GPIO output data */
    {0x0000, 0x8114},

    {0x0003, 0x8111},
    {0x0000, 0x8111},
    {0x0090, 0x8110},    /* Enable: SSI output, External 2X clock output */
    {0x0020, 0x8112},
    {0x0000, 0x8114},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0001, 0x8114},
    {0x0003, 0x8114},

    {0x000f, 0x8402},   /* Memory bank Address */
    {0x0000, 0x8403},   /* Memory bank Address */
    {0x00ba, 0x8804},   /* SSI Slave address */
    {0x0010, 0x8802},   /* 93.75kHz SSI Clock Two DataByte */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},   /* Will write 2 bytes (DATA1+DATA2) */
    {0x0020, 0x8801},   /* Register address for SSI read/write */
    {0x0044, 0x8805},   /* DATA2 */
    {0x0004, 0x8800},   /* DATA1 -> write triggered */
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0009, 0x8801},
    {0x0042, 0x8805},
    {0x0001, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x003c, 0x8801},
    {0x0001, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0001, 0x8801},
    {0x000a, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0002, 0x8801},
    {0x0000, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0003, 0x8801},
    {0x0027, 0x8805},
    {0x0001, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0004, 0x8801},
    {0x0065, 0x8805},
    {0x0001, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0005, 0x8801},
    {0x0003, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0006, 0x8801},
    {0x001c, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0007, 0x8801},
    {0x002a, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x000e, 0x8801},
    {0x0000, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0028, 0x8801},
    {0x002e, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0039, 0x8801},
    {0x0013, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x003b, 0x8801},
    {0x000c, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0035, 0x8801},
    {0x0028, 0x8805},
    {0x0000, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    /* READ { 0x0001, 0x8803 } -> 0000: 00  */
    /* READ { 0x0001, 0x8802 } -> 0000: 10  */
    {0x0010, 0x8802},
    {0x0009, 0x8801},
    {0x0042, 0x8805},
    {0x0001, 0x8800},
    /* READ { 0x0001, 0x8803 } -> 0000: 00  */

    {0x0050, 0x8703},
    {0x0002, 0x8704},   /* External input CKIx1 */
    {0x0001, 0x870c},   /* Select CKOx2 output */
    {0x009a, 0x8600},   /* Line memory Read Counter (L) */
    {0x0001, 0x8606},    /* 1 Line memory Read Counter (H) Result: (d)410 */
    {0x0023, 0x8601},
    {0x0010, 0x8602},
    {0x000a, 0x8603},
    {0x009a, 0x8600},
    {0x0001, 0x865b},   /* 1 Horizontal Offset for Valid Pixel(L) */
    {0x0003, 0x865c},   /* Vertical offset for valid lines (L) */
    {0x0058, 0x865d},   /* Horizontal valid pixels window (L) */
    {0x0048, 0x865e},   /* Vertical valid lines window (L) */
    {0x0000, 0x865f},

    {0x0006, 0x8660},
            /* Enable nibble data input, select nibble input order */

    {0x0013, 0x8608},   /* A11 Coeficients for color correction */
    {0x0028, 0x8609},
            /* Note: these values are confirmed at the end of array */
    {0x0005, 0x860a},   /* ... */
    {0x0025, 0x860b},
    {0x00e1, 0x860c},
    {0x00fa, 0x860d},
    {0x00f4, 0x860e},
    {0x00e8, 0x860f},
    {0x0025, 0x8610},   /* A33 Coef. */
    {0x00fc, 0x8611},   /* White balance offset: R */
    {0x0001, 0x8612},   /* White balance offset: Gr */
    {0x00fe, 0x8613},   /* White balance offset: B */
    {0x0000, 0x8614},   /* White balance offset: Gb */

    {0x0064, 0x8651},   /* R gain for white balance (L) */
    {0x0040, 0x8652},   /* Gr gain for white balance (L) */
    {0x0066, 0x8653},   /* B gain for white balance (L) */
    {0x0040, 0x8654},   /* Gb gain for white balance (L) */
    {0x0001, 0x863f},   /* Enable fixed gamma correction */

    {0x00a1, 0x8656},   /* Size - Window1: 256x256, Window2: 128x128,
                 * UV division: UV no change,
                 * Enable New edge enhancement */
    {0x0018, 0x8657},   /* Edge gain high threshold */
    {0x0020, 0x8658},   /* Edge gain low threshold */
    {0x000a, 0x8659},   /* Edge bandwidth high threshold */
    {0x0005, 0x865a},   /* Edge bandwidth low threshold */
    {0x0064, 0x8607},   /* UV filter enable */

    {0x0016, 0x8660},
    {0x0000, 0x86b0},   /* Bad pixels compensation address */
    {0x00dc, 0x86b1},   /* X coord for bad pixels compensation (L) */
    {0x0000, 0x86b2},
    {0x0009, 0x86b3},   /* Y coord for bad pixels compensation (L) */
    {0x0000, 0x86b4},

    {0x0001, 0x86b0},
    {0x00f5, 0x86b1},
    {0x0000, 0x86b2},
    {0x00c6, 0x86b3},
    {0x0000, 0x86b4},

    {0x0002, 0x86b0},
    {0x001c, 0x86b1},
    {0x0001, 0x86b2},
    {0x00d7, 0x86b3},
    {0x0000, 0x86b4},

    {0x0003, 0x86b0},
    {0x001c, 0x86b1},
    {0x0001, 0x86b2},
    {0x00d8, 0x86b3},
    {0x0000, 0x86b4},

    {0x0004, 0x86b0},
    {0x001d, 0x86b1},
    {0x0001, 0x86b2},
    {0x00d8, 0x86b3},
    {0x0000, 0x86b4},
    {0x001e, 0x8660},

    /* READ { 0x0000, 0x8608 } -> 0000: 13  */
    /* READ { 0x0000, 0x8609 } -> 0000: 28  */
    /* READ { 0x0000, 0x8610 } -> 0000: 05  */
    /* READ { 0x0000, 0x8611 } -> 0000: 25  */
    /* READ { 0x0000, 0x8612 } -> 0000: e1  */
    /* READ { 0x0000, 0x8613 } -> 0000: fa  */
    /* READ { 0x0000, 0x8614 } -> 0000: f4  */
    /* READ { 0x0000, 0x8615 } -> 0000: e8  */
    /* READ { 0x0000, 0x8616 } -> 0000: 25  */
    {}
};

static int reg_write(struct usb_device *dev,
            u16 index, u16 value)
{
    int ret;

    ret = usb_control_msg(dev,
            usb_sndctrlpipe(dev, 0),
            0,      /* request */
            USB_TYPE_VENDOR | USB_RECIP_DEVICE,
            value, index, NULL, 0, 500);
    PDEBUG(D_USBO, "reg write i:0x%04x = 0x%02x",
        index, value);
    if (ret < 0)
        pr_err("reg write: error %d\n", ret);
    return ret;
}

/* read 1 byte */
/* returns: negative is error, pos or zero is data */
static int reg_read(struct gspca_dev *gspca_dev,
            u16 index)  /* wIndex */
{
    int ret;

    ret = usb_control_msg(gspca_dev->dev,
            usb_rcvctrlpipe(gspca_dev->dev, 0),
            0,          /* register */
            USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
            0,      /* value */
            index,
            gspca_dev->usb_buf, 1,
            500);           /* timeout */
    PDEBUG(D_USBI, "reg read i:%04x --> %02x",
        index, gspca_dev->usb_buf[0]);
    if (ret < 0) {
        pr_err("reg_read err %d\n", ret);
        return ret;
    }
    return gspca_dev->usb_buf[0];
}

/* send 1 or 2 bytes to the sensor via the Synchronous Serial Interface */
static int ssi_w(struct gspca_dev *gspca_dev,
        u16 reg, u16 val)
{
    struct usb_device *dev = gspca_dev->dev;
    int ret, retry;

    ret = reg_write(dev, 0x8802, reg >> 8);
    if (ret < 0)
        goto out;
    ret = reg_write(dev, 0x8801, reg & 0x00ff);
    if (ret < 0)
        goto out;
    if ((reg & 0xff00) == 0x1000) {     /* if 2 bytes */
        ret = reg_write(dev, 0x8805, val & 0x00ff);
        if (ret < 0)
            goto out;
        val >>= 8;
    }
    ret = reg_write(dev, 0x8800, val);
    if (ret < 0)
        goto out;

    /* poll until not busy */
    retry = 10;
    for (;;) {
        ret = reg_read(gspca_dev, 0x8803);
        if (ret < 0)
            break;
        if (gspca_dev->usb_buf[0] == 0)
            break;
        if (--retry <= 0) {
            PDEBUG(D_ERR, "ssi_w busy %02x",
                    gspca_dev->usb_buf[0]);
            ret = -1;
            break;
        }
        msleep(8);
    }

out:
    return ret;
}

static int write_vector(struct gspca_dev *gspca_dev,
            const u16 (*data)[2])
{
    struct usb_device *dev = gspca_dev->dev;
    int ret = 0;

    while ((*data)[1] != 0) {
        if ((*data)[1] & 0x8000) {
            if ((*data)[1] == 0xdd00)   /* delay */
                msleep((*data)[0]);
            else
                ret = reg_write(dev, (*data)[1], (*data)[0]);
        } else {
            ret = ssi_w(gspca_dev, (*data)[1], (*data)[0]);
        }
        if (ret < 0)
            break;
        data++;
    }
    return ret;
}

/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
            const struct usb_device_id *id)
{
    struct sd *sd = (struct sd *) gspca_dev;
    struct cam *cam;
    const u16 (*init_data)[2];
    static const u16 (*(init_data_tb[]))[2] = {
        spca508_vista_init_data,    /* CreativeVista 0 */
        spca508_sightcam_init_data, /* HamaUSBSightcam 1 */
        spca508_sightcam2_init_data,    /* HamaUSBSightcam2 2 */
        spca508cs110_init_data,     /* IntelEasyPCCamera 3 */
        spca508cs110_init_data,     /* MicroInnovationIC200 4 */
        spca508_init_data,      /* ViewQuestVQ110 5 */
    };

#ifdef GSPCA_DEBUG
    int data1, data2;

    /* Read from global register the USB product and vendor IDs, just to
     * prove that we can communicate with the device.  This works, which
     * confirms at we are communicating properly and that the device
     * is a 508. */
    data1 = reg_read(gspca_dev, 0x8104);
    data2 = reg_read(gspca_dev, 0x8105);
    PDEBUG(D_PROBE, "Webcam Vendor ID: 0x%02x%02x", data2, data1);

    data1 = reg_read(gspca_dev, 0x8106);
    data2 = reg_read(gspca_dev, 0x8107);
    PDEBUG(D_PROBE, "Webcam Product ID: 0x%02x%02x", data2, data1);

    data1 = reg_read(gspca_dev, 0x8621);
    PDEBUG(D_PROBE, "Window 1 average luminance: %d", data1);
#endif

    cam = &gspca_dev->cam;
    cam->cam_mode = sif_mode;
    cam->nmodes = ARRAY_SIZE(sif_mode);

    sd->subtype = id->driver_info;

    init_data = init_data_tb[sd->subtype];
    return write_vector(gspca_dev, init_data);
}

/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{
    return 0;
}

static int sd_start(struct gspca_dev *gspca_dev)
{
    int mode;

    mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
    reg_write(gspca_dev->dev, 0x8500, mode);
    switch (mode) {
    case 0:
    case 1:
        reg_write(gspca_dev->dev, 0x8700, 0x28);    /* clock */
        break;
    default:
/*  case 2: */
/*  case 3: */
        reg_write(gspca_dev->dev, 0x8700, 0x23);    /* clock */
        break;
    }
    reg_write(gspca_dev->dev, 0x8112, 0x10 | 0x20);
    return 0;
}

static void sd_stopN(struct gspca_dev *gspca_dev)
{
    /* Video ISO disable, Video Drop Packet enable: */
    reg_write(gspca_dev->dev, 0x8112, 0x20);
}

static void sd_pkt_scan(struct gspca_dev *gspca_dev,
            u8 *data,           /* isoc packet */
            int len)            /* iso packet length */
{
    switch (data[0]) {
    case 0:             /* start of frame */
        gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
        data += SPCA508_OFFSET_DATA;
        len -= SPCA508_OFFSET_DATA;
        gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
        break;
    case 0xff:          /* drop */
        break;
    default:
        data += 1;
        len -= 1;
        gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
        break;
    }
}

static void setbrightness(struct gspca_dev *gspca_dev, s32 brightness)
{
    /* MX seem contrast */
    reg_write(gspca_dev->dev, 0x8651, brightness);
    reg_write(gspca_dev->dev, 0x8652, brightness);
    reg_write(gspca_dev->dev, 0x8653, brightness);
    reg_write(gspca_dev->dev, 0x8654, brightness);
}

static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
{
    struct gspca_dev *gspca_dev =
        container_of(ctrl->handler, struct gspca_dev, ctrl_handler);

    gspca_dev->usb_err = 0;

    if (!gspca_dev->streaming)
        return 0;

    switch (ctrl->id) {
    case V4L2_CID_BRIGHTNESS:
        setbrightness(gspca_dev, ctrl->val);
        break;
    }
    return gspca_dev->usb_err;
}

static const struct v4l2_ctrl_ops sd_ctrl_ops = {
    .s_ctrl = sd_s_ctrl,
};

static int sd_init_controls(struct gspca_dev *gspca_dev)
{
    struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;

    gspca_dev->vdev.ctrl_handler = hdl;
    v4l2_ctrl_handler_init(hdl, 5);
    v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,
            V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);

    if (hdl->error) {
        pr_err("Could not initialize controls\n");
        return hdl->error;
    }
    return 0;
}

/* sub-driver description */
static const struct sd_desc sd_desc = {
    .name = MODULE_NAME,
    .config = sd_config,
    .init = sd_init,
    .init_controls = sd_init_controls,
    .start = sd_start,
    .stopN = sd_stopN,
    .pkt_scan = sd_pkt_scan,
};

/* -- module initialisation -- */
static const struct usb_device_id device_table[] = {
    {USB_DEVICE(0x0130, 0x0130), .driver_info = HamaUSBSightcam},
    {USB_DEVICE(0x041e, 0x4018), .driver_info = CreativeVista},
    {USB_DEVICE(0x0733, 0x0110), .driver_info = ViewQuestVQ110},
    {USB_DEVICE(0x0af9, 0x0010), .driver_info = HamaUSBSightcam},
    {USB_DEVICE(0x0af9, 0x0011), .driver_info = HamaUSBSightcam2},
    {USB_DEVICE(0x8086, 0x0110), .driver_info = IntelEasyPCCamera},
    {}
};
MODULE_DEVICE_TABLE(usb, device_table);

/* -- device connect -- */
static int sd_probe(struct usb_interface *intf,
            const struct usb_device_id *id)
{
    return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
                THIS_MODULE);
}

static struct usb_driver sd_driver = {
    .name = MODULE_NAME,
    .id_table = device_table,
    .probe = sd_probe,
    .disconnect = gspca_disconnect,
#ifdef CONFIG_PM
    .suspend = gspca_suspend,
    .resume = gspca_resume,
    .reset_resume = gspca_resume,
#endif
};

module_usb_driver(sd_driver);